The zone will be the home of the Grizzlemaw Furbolgs, a peaceful tribe that is currently arming for war due to encroachment by trappers and the goblin Venture Company, as well as an invasion by the undead Drakkari Ice Trolls (Who are listed on the Beastiary page, although still grayed out).
Not only does the zone look amazing, but it sounds like there's going to be a lot of great lore and story to go with it as well. It's good to see an old nemesis return in the form of the Venture Company, whom we really haven't seen much of since Stranglethorn Vale, and hopefully we'll have one more Furbolg tribe to ally with in the Grizzlemaw. It's also mentioned that they worship a giant bear that roams the wilderness, which feels like it could lead to a bit of new lore for druids as well perhaps, especially if the bear is related to Ursoc and Ursol somehow. Finally, the Drakkari Ice Trolls seem to have gone the same way as the Mossflayers, and it should be interesting to find out how they fell.